BACKGROUND Prior research shows that work in agriculture and construction/extraction occupations increases the risk of environmental heat-associated death. PURPOSE To assess the risk of environmental heat-associated death by occupation. METHODS This was a case-control study. Cases were heat-caused and heat-related deaths occurring from May-October during the period 2002-2009 in Maricopa Cou...

Preservation of muscle function, known to decline in microgravity and simulation (bed rest), is important for successful spaceflight missions. Hence, there is great interest in developing interventions to prevent muscle-function loss. In this study, 20 males underwent 56 days of bed rest. Ten volunteers were randomized to do resistive vibration exercise (RVE). The other 10 served as controls. R...

A vibrated bed of powder with a large aspect ratio (periodic

In this research, the selective oxidation of benzene to maleic anhydride (MAN) in a fixed-bed reactor was studied. The gas phase catalytic oxidation of benzene was carried outin a laboratory scale fixed bed reactor on the catalysts, which were prepared having two different compositions on silica gel. The effects of temperature, flow rates of benzene and air, and catalyst type on the reactio...

BACKGROUND Pabon Lasso model was applied to assess the relative performance of hospitals affiliated to Kurdistan University of Medical Sciences (KUMS) before and after the implementation of Health Sector Evolution Plan (HSEP) in Iran. METHODS This cross-sectional study was carried out in 11 public hospitals affiliated to KUMS in 2015. Twelve months before and after the implementation of the f...

cancer has emerged as a major public health concern owing to its magnitude, worldwide distribution, impact on the quality of life, financial burden on the patient / family / society / health care delivery system, and associated mortality. findings of a study have shown that approximately 19% of all types of cancers have been attributed to the environmental factor. almost 900 potential carcinoge...

Traffic jams are reality in many cities and the current ways to deal with the problem always incur costs for citizens. This paper aims to understand the traffic behavior in a regular grid and in a real world network, with uniform and non-uniform demands and different demand loads. To analyze traffic flow, two metrics are used: waiting vehicles and the correlation ratio between the edge occupati...